USDA Forest Service

The U.S. Department of Agriculture Forest Service is a Federal agency that manages public lands in national forests and grasslands. The Forest Service is also the largest forestry research organization in the world, and provides technical and financial assistance to state and private forestry agencies. Gifford Pinchot, the first Chief of the Forest Service, summed up the purpose of the Forest Service—"to provide the greatest amount of good for the greatest amount of people in the long run."

Remove Filters: Stem and Leaf Rusts^(X) USDA Forest Service Archive^(X)

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Image	Subject Name	Scientific Name	Description
2733022	fusiform rust	Cronartium quercuum f.sp. fusiforme	rust hazard map for the southeast United States
2733023	fusiform rust	Cronartium quercuum f.sp. fusiforme	rust hazard map for the southeast United States
2733059	fusiform rust	Cronartium quercuum f.sp. fusiforme	trunk canker
4213044	sweet fern blister rust	Cronartium comptoniae	canker on stem
2634081	white pine blister rust	Cronartium ribicola	close-up view of canker margin
1241714	white pine blister rust	Cronartium ribicola	Rust causes orange or yellow discoloration of thin bark of young trees.
0355051	southern cone rust	Cronartium strobilinum	Aecia on swollen, infected cone
1241719	white pine blister rust	Cronartium ribicola	Spindle-shaped swelling is an early indication of branch infections. This infection is also sporulating.
1241720	white pine blister rust	Cronartium ribicola	Spores are produced within the blisters.
2733024	fusiform rust	Cronartium quercuum f.sp. fusiforme	on bareroot nursery seedlings

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USDA Forest Service